A lot of my GTCU subjects have been lit with a residential pole light initially intended for a trio of incandescent 60-watt incandescent bulbs but now contains a mix of LED and CFL lamps. The output quantity isn't anything all that great but it works well enough for what I use it for. I must do a custom white balance, but it works well enough in that respect too. If the white balance were more critical, I could change out the CFLs for LEDs, the latter of which do not have a line spectrum component as fluorescent lights, including CFLs, do.

I have two LED lights that I use. I use them both primarily for shooting flowers indoors, although I intend to try them outdoors next Spring, when the weather is warmer and there are flowers above the ground.

1. The GiSTEQ Flashmate LED Video Light - this works quite well and is quite adjustable. They are designed so that two or more can be combined to provide a much larger light.

2. The Aputure Amaran HC100 LED Ring Flash - it operates as a ring flash and also as an adjustable constant source of light. I find the adjustment of the "constant" source of light to be very poor and I really do not rely on it for any of its adjustments, so it makes a good source of full light and is okay as a full flash, except the adjustments are poor. You can operate it with either the left or right half of the ring working, so it is adjustable in that sense. It comes with a series of rings that allow you to fit it to lenses with different front diameters, or it can be used as a flash on the top of a camera. It can also be used in standalone mode on a light stand. It is also quite cheap, so it would make a good flash for someone just starting out in photography as they would not have to spend the hundreds of dollars for the "brand" name traditional flashes.